At the recent Game Developers Conference in San Francisco, several developers of virtual reality systems designed to immerse players in 3-D games and video acknowledged problems with users suffering from motion sickness. The big players in this market include Oculus VR teamed with Samsung (Oculus Rift), Sony (Project Morpheus), and Microsoft (HoloLens).

Oculus Rift

Sony Project Morpheus PS4

Microsoft HoloLens

In an interview at the developer conference, Gabe Newell, the president and co-founder of Valve, said he, too, had reacted badly to most headset demonstrations, describing them as the “world’s best motion sickness inducers.”